Safety-lock



'1. ROSZMANN.

'SAFETYLOCL 'APPLICATION rlLEnluL-Y 19, 1920.

' the `lock being omitted.

Covington, in the county of Kenton and proved device ,taken in the-plane of the line 3-3 ofvFig. 2.

UNITED* STATES-" PATENT oFFlCE.--v

,Josnrng noszirnim, or COVINGTON, Kinv'rncmr.'A

SAFETY-1.00K.

Application -ledJuly ,19,

To all fwltomit may concern.' w

Be -it known that I, JOSEPH RosziwL-iNN, a lcitizen Vof the United States, residing at State ofy Kentucky, have invented certain new and useful improvements in Safety- Locks, of which the following is a speciiication. Y A My invention relates to safety locks of the character of those adapted for. use lin locking automobiles, and is applied between the brake-'lever and the release-lever of the brake-lever, of the type employed for the emergency brake, for instance, of a Ford automobile. Y

It is the object of my invention to provide a locking mechanism soarranged that the yparts thereof remain in associatedrela- Ytion with each other and with kthe brakelever, whether in locked or unlocked relation; further, to provide a permutation lock between the brake-lever and release-leverY so arranged that, by manipulation of the tumblers, the release lever'may be locked for latching relation of the latch and unlocked for manipulation or' the dog of the latching mechanism.

The invention will be further readily understood from the following' description and claims, and from the drawings in which latter: y l p Figure 1 is a side elevation of my imshown in its :applied relation. A

Fig. 2 is vanv axialsection ofthe taken on the line 2 2 of Fig. 1.k Y

Fig. 3 is an axial-section of the same,

same,

Fig. 4 isa 'cross-section of the same,

taken in thevplane of the line 4-41of-Fig.

3, showing the, 4parts 'in unlocked relation.

Fig. 5 is a similar view, showing the parts in locked relation.

Fig. 6 is a detail in horizontal section, taken on the line 6--6 of Fig. 1.

Fig. 7 is a perspective view of the tumblers anda springy between the same, shown in separated relations; and, j

Fig. Sis' a side velevation-'of the tube and stem members of the lock in separated rela.- tions, and attached respectively to the brakelever and lthe release-lever, the balance of The lever 11 is exemplified the emergency brake-lever of anA automobile, suitably` flXedly securedV to a rock-shaft 12,

Specification ofrLetters Patent. I Patented June vSecured to the brake-lever.

1920. yseriali No. 397,282.

rockable in a suitable bearing 13 of aV seg- :nient-rack 14, secured to a suitable part 15 'of an automobile, as by bolts 16., An arm "1f is also fxedly secured to the rock-shaft,

and has articulating connection 18 with a `member 19, 'which may be of any suitable construetionand form an operating connection with-the brake of the automobile for manipulating the same..

The segment-rack is provided with ratchetteeth 21, with which a pawl 22 coacts, the pawl being pivoted by a pin 23 to the brake-lever. A release-rod 25 is'articulated by a pin 26 to the pawl, and extends lengthwise ofthe brake-lever, being slidable lengthwise, -i'or instance, in a bearing 27, The upper end of the rod is articulated at 2SV by a riveted pin with an ear 29 of a release-lever 30.

`A spring 31, the ends of which are connected to the brake-lever and the release rod at 32 and 33, respectively, normally 'i pivot-holes' in said ears and said lug Jfor pivoting the release-lever to the brake-lever.

yA permutation lock, shown generally at 41, is located between the handle 42 of the brake-lever and the release-lever. It is eX- empliiiedv as comprising a tube-member 43, Vanda stem-member 44. 'The tube-member is shown pivoted to the brake-lever and the stem-member is shown pivoted to the re- `lease-lever, although the pivoting of these members may be reversed, if desired.

The handle is represented as comprising a body portion 46,1which is integral with the brake-lever, Aand a capv 47,' secured tothe body. A socket 4S is located between the body and the cap, and the end of the tubemember is lshown provided with a ballstructure 49, received in the complementally formed socket for forming.r a pivot connection between the tube-member and the handle. Pivot-pinsY 50 may be iXed in the walls ofthesocket, the inner ends of said lpivot-pins being received in pivot-holes 52 j in the ball. These pins may be in the form vof screws, the heads of which, vwhen the riveted pivot-pin 38 is received through of the screws. The cap may be seeuredto the body ofthe handle by means of screws' 53, the heads of which also have their slotted ends removed so as to present flush faces at` the outside of the body of the handle to pre- .ventthe `removal of the screws; Vhen the handle is provided with its finish, the ends of the screws are finished with the handle so vas to hide the same.

The tube-member isat,the inner end of the. ball, providedwith a vreduced portion 55,' forming a neck, which is received in the contracted throat 56, formed by the inner portion of the wall of the socket. The outer ,end of the throat is widened,as shown at 57,

for permitting pivotal movement of the tube-member. Y

rlhe tube-member is provided with a bore 59, in which the stem 44 is arranged to4 slide ling the pivot-block with the release lever,

the slotted ends of the heads of the screws *being removed after the parts are connected and finished with a surface similar to the surface of the pivot-block to hide the existence of the screws. The pivot-block is provided with a recess 67, having diverging walls 68, divergingvfrom the stein, so as to permit pivotal movement between the stem and the pivot-block. A pivot-pin 69 is received through 4a pin-hole in the end of the stem and pivot-holes in vcheeks 70 of the pivot-block at the vrespective sides of the stem.

The tube-memberl is, adjacent to its pivot portion, provided with an annular shoulder 7 3.' Tumbler-s 74, 75, 76 and 77 are received over the tube-member. The end of the tubemember is threaded, as shown at 79. The tumbler 77 is internally threaded for having threaded connection with the threaded end of the tube-member. The tumbler 77 is fixed to the tube-member Vafter the tumblers are put in place, as by means of a screw 80, the inner end of which isset into the threaded portion of the tube-member to prevent relative turning between the tumbler 77 vand the tube-member. The outer lend of the screw, after insertion of the screw isreinoved so as to form a surface similar to the-surface of the tumbler 77, to obscure the screw. y

The peripheries of the tumblers are provided with digits `81,'preferably from naught to nine. The tumblers 74, 75 and 76 are provided with inner annular flanges 82, the-inner 'walls-ofv which have `bearing upon the outer periphery of the tube-member, be- Vtween the shoulder 73 and the tumbler 77, so as to rotate the same with Vrelation to each other and the tumbler 77; 'Each'fof the internal viianges,isprovided with a'slot 83. .i

The teeth 61 on` 'the stem are sufficiently long tov projectthrough the slot 6@ in ,the

tube-member and across the inner flang'es of the tumblers 74, and; 76;,Wllfll Said flanges are located in Vtradial.position with relation to the slot 60, but whenV the slots 825 n Y in said ilanges arein-line with said teeth, the teeth may pass through saidryslots.I Y `The slot 60 in the tube-member preferably' ex- .tends to the pivot-end of the tube-member,

andthe bore preferably also extends ite the pivot-end of the tube-member, sothat the stem-membermay be moved inwardly inV the tube-member, in vorder thatits teeth may have complete movement in, said slots, for

ready complete release of thel release-lever n -and of thepawl ofthe latching mechanism,

when the parts arefin released position.

Spaces 84 areV locatedin rear/of the teethv 61. lVhen the release-lever isin locked relation, the inner flanges of the; respective tumblers 74,75and 7 6 are received Ain-these l spaces.VV `In order to afford releaseof the release lever, it is necessaryl to so manipulate all vthe rotating ltumblers as to placethe slots 83 in the inner flanges 82 thereofr in. line with all` of the, teeth 61v before any release movement ofthe release-lever can be iac. f

in order to hold the `tumblers 74, 75fand u 7 6 in assumed positions IV havefprovided the same wit-hrabbets 85, in which springs 86, shown as-spiral;springs,are received. These springs `exert pressure between adjacent tumblers 74, 7 5, 76, and between these tuinblers and the shoulders H73 and the 4t'umbler 77. y The slot 60 inthe tube-member preferably terminates at its forward end at the threaded portion of the ltube-member, for forming `a shoulder 87 against which the end tooth 61 isarranged toA impinge for limiting. separating movement between therelease-.lever and the handle of thefbrakej-lever,

In assembling theparts, the stem-member is arranged to be received through the rearA or pivot end of the'tube-member, the pivot end of the steml passing through the .tubemember and projecting through the kswinging end thereof. The tumblers and springs having been laced in position, the ends,y

of these mem ers are, pivotally'conneeted V with vthe brake-lever and the release-lever.

Y My improved device provides a simple.

. construction so arrangedland positioned that ready manipulation 'of' the tumblers may bei had, when desired, the digits on. the tumblers being inconvenient position forbe- 4with the combination.

ing readily viewed by the operator, so that one who is familiar with the combination of the lockl may readily manipulate Vthe tumblers for readily placing the samein release relation, but afl'ordinga secure lockr against manipulation by one who is not familiar It also provides a ready locking means all parts of .which remain in place between the levers.l

Having thus fully described my invention,

what I claim as'new and desire to secure by Y Letters Patent, is:

l. In a locking lmechanism of the character described, the combination of a pair of elements in the form of a brake-lever and a release-lever, a tube-member and a stemmember pivoted to said respective elements and extending toward each other between said elements, said stem-member movable axially in said tube-member, said stem-member provided with locking parts, and said tube-member provided with a slot in which said locking parts move, and rotatable members between said elementsabout said tubemember and said stem-member, said rotatable members provided with locking portions coacting with said first-named locking parts.

2. In a locking mechanism of the character described, the combination cfa brakelever, a release-lever pivoted thereto, a tubemember having pivotal connection with said brake-lever, a stem-member provided with teeth and having pivotal connection with vsaid release-lever, said stem-member extendingaxially into said tube-member and having Aaxial movement therein, said tube-member and said stem-member located between said brake-lever and'said release-lever, said tube-member and said stem-member provided With coacting shoulders to limit separation between said levers, and tumblers surroundingY said tube-member arranged to coact with said teeth to limit releasing approach between said levers. v

3. In a locking mechanism of the character described, the combination of a brakelever provided with a handle, a release-lever having pivotal connection with said brakelever, said handle comprising a body vfixed to said brake-lever and a cap, a. tube-member provided with a pivot-ball and said body and cap of said handle provided with a ballrecess in which V`said pivot-ball is received, means for securing said cap and body together for fixing said ballY in said handle, said tube-member provided with an axial bore and with a peripheral slot communieating with said bore and extending lengthwise of said tube-member, said slot terminating in advance of the swinging end of said tube-member for forming a shoulder, a stem-member having pivotalconnection with said release-lever, said stem-member provided with teeth, said stem-member received in and slidable axially in said bore and said teeth slidable lengthwise in said slot and projecting beyond the outer peripheryl of said tube-member, and tumblers surrounding said tube-member and provided with inner flanges having notches'therein, said inner flanges and notches arranged to coact with said teeth, and said tube-member and said stem-member located in axial alinement between said handle and said release-lever above said pivotal connection between said levers.

In testimony whereof I have hereunto signed my name in the presence of two subscribing witnesses.

JOSEPH ROSZMANN.

In presence of- JAMES 1I. FITZPATRICK, VDELMA WERNSING. 

